Home / 1,223.10-1,835.28-675.18

Finding the Fourth Proportional to 1,223.10, 1,835.28 and 675.18

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Solution

The fourth proportional to 1,223.10, 1,835.28 and 675.18 is: 1,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.10 : 1,835.28 = 675.18 : x
  2. Step 2: Convert to fraction form
    1,223.10/1,835.28 = 675.18/x
  3. Step 3: Cross multiply
    1,223.10x = 1,835.28 × 675.18
  4. Step 4: Simplify right side
    1,223.10x = 1,239,144.35
  5. Step 5: Solve for x
    x = 1,239,144.35/1,223.10
  6. Step 6: Final answer
    x = 1,013.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.